Re: Dexterity DataGridField Default Factory

On Mon, Mar 2, 2015 at 7:32 AM, Simon Richardson <[email protected]>
wrote:

> Hi Plone users
>
> I'm unable to create a default factory for a datagridfield field, due to
> running into a
>

What type is your defaultFactory callable returning?  I am assuming that it
should be a list of dict, assuming you are using value_type=DictRow in your
schema field.


> 'unhashable type: list' error
>

Does your defaultFactory callable suffer from this problem if you call it
in a vacuum?


>
> Does anyone have an example of a datagridfield with a default value
> defined?
>

I have no working example (I don't use defaults in any of my grids), but
assume something like this might work (untested):

def myTableDefault():
    #return []  # simplest case
    some_record = {'title': u'This', 'description': u'That', 'count': 1}
    return [some_record]

class IMyRowSchema(model.Schema):
    title = schema.TextLine()
    description = schema.Text()
    count = schema.Int()

class IMySchema(model.Schema):

    form.widget(table=DataGridFieldFactory)
    myfield = schema.Llst(
        value_type=DictRow(schema=IRowSchema),
        defaultFactory=myTableDefault
        )
  <http://goparallel.sourceforge.net/>


Sean

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